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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Jelly's blog — GNOME battery charge control (vdwaa.nl)

submitted 9 months ago by joojmachine@lemmy.ml to c/linux@lemmy.ml

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[–] fl42v@lemmy.ml 5 points 9 months ago (6 children)

The laptop's battery during these days would discharge and charge, slowly degrading the battery because only the last ~ 20% would be charged and discharged.

How, tho? Sounds like what we had for e.g. NiCd batteries (memory effect) but do not have for li-{ion,poly} ones.

Also, why would the laptop discharge the battery with ac attached? Sounds weird to me

[–] PlasticPaperplane@lemmy.dbzer0.com 16 points 9 months ago (5 children)

Lithium-ion batteries these days do not have a memory effect, but will degrade when kept at 100% charge because the internal composition of chemicals will change, destroying the battery in the process. The ideal charge is between 20% and 80%. With (better) battery charge control you can extend the design capacity (the maximum charge the battery can hold when new) and lifespan. With AC attached, the battery will discharge but it will be charged when the minimum charge level is reached.

[–] fl42v@lemmy.ml 2 points 9 months ago

Huh, apparently some vendors kinda do it themselves (not sure if always, tho) at least for the lower bound: cat /sys/class/power_supply/BAT1/voltage_min_design reports 10.8v for a 3s battery which is about 3.6v per cell instead of 3.2. Also the upper limit is uncertain so far

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